human race vs grouping

human race and grouping both are nouns.

Word	Noun	Adjective	Verb	Adverb
human race	Yes	No	No	No
grouping	Yes	No	No	No

As nouns, grouping is a hypernym of human race; that is, grouping is a word with a broader meaning than human race:

Other hypernyms of human race include group, homo, human, human being, man.

human race (noun)	grouping (noun)
all of the living human inhabitants of the earth	any number of entities (members) considered as a unit
	the activity of putting things together in groups
	a system for classifying things into groups